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Vacuum Interrupters for Circuit Breakers:TD-40.5/1250-20A
Rated  Current (A) 1250
Rated Voltage (KV) 40.5
Rated Breaking Current 20
Rated Breaking Current Times 30
Rated Short-time(1min) Power-Frequency Withshand Voltage 95
Rated Lightning Impulse Withstand Voltage 185
Mechanical Life 10000
external diameter 90
Installation Height 194
TD-40.5/1250-20A